The Ferris-Haggarty Copper-Gold Mine, Grand Encampment District, Wyoming
January 2003 by W. Dan HauselAt the close of the 19th Century, optimism was high that Wyoming would become an important source for copper much like the neighbor states of Colorado, Utah, and Montana. This dream was short-lived...
The little-known Sunnyside district in Cochise County, Arizona, is on the southwest side of the Huachuca Mountains, which reach elevations in excess of 9,000 feet.
“I heard him hollering down in the hole as soon as I got there,” he said. “I was just glad to see him alive.”
• Dredging bill needs your attention
• Miners take the offensive
• Cap-and-trade legislation
I furiously started pulling material out of the side wall and putting it in my scoop. It didn't take long to discover that the source of the scream was from a one-ounce chunk...
To all the miners who read the article, “New Life for the Suction Dredge,” printed in the December 2003 issue of ICMJ, I have an amusing update for you. I periodically go through my old back issues and I found the December 1981 issue very interesting.
We can’t say it wasn’t expected. The California Department of Fish & Game released revised suction gold dredging regulations on February 17, 2012, and it’s obvious the agency wants to make life as difficult as possible for dredgers.
Skarn consists of coarse-grained calcium, magnesium, iron, and aluminum silicates formed by hydrothermal solutions, which replace limestone or dolomite near the contact with an igneous intrusion. The contact metamorphism is usually caused by an intrusion such as quartz monzonite, granodiorite, or similar rock type, which may or may not be mineralized.
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